One step better & more in keeping with the Fashion...   oops I mean Software
Industry would be to use XML.  A textural database structure ( for want of a
more accurate definition ).

Cheers

Don Ingram
[EMAIL PROTECTED]

----- Original Message -----
From: Bagotronix Tech Support <[EMAIL PROTECTED]>
To: Protel EDA Forum <[EMAIL PROTECTED]>
Sent: Friday, July 27, 2001 7:14 AM
Subject: Re: [PEDA] a lib. for everyone


> > It should be noted that the Protel ASCII format is not only text based,
> but
> > it is self-documenting. All the records and fields are named wherever
they
> > occur. The library format is binary only, but one could import parts to
a
> > PCB file and then create a library from the PCB file.
>
> True, but I think the reason for the gripe is that Protel files are not
> native ASCII.  To get ASCII, you have to export files, an extra step that
> has to be done after each change to the original binary file.
>
> I agree with Chris that Protel's native file format should be ASCII.  Back
> in the days when we were using 286 PCs, the faster and smaller binary file
> formats made the difference between snappy and sluggish.  Anyone remember
> OrCad SDT III where you had to compose and decompose the libraries?  OrCad
> was fast, fast, fast, but used native binary formats.  Nowadays with
> stratospheric CPU clocks and RAM sizes, it is less of an issue.  The EXEs
> are 10 times the size of the board data!
>
> Board data should be native ASCII because years later when someone wants
you
> to resurrect or modify an old design, you have data that you can read
> without the program that created it.  You probably won't have that old
> program years from now!  Even if you do, will it run on the computer you
> have then?  I recently read a science fiction book set in the present time
> where one the characters in the story printed on paper anything he wanted
to
> save for the future.  I thought this was hilarious until the next
paragraph,
> where he explained that paper records lasted longer than disk data (true)
> and would always be compatible with future eyeballs (also true).  We have
> some floppies from late 80's/early 90's that are not readable anymore due
to
> magnetic decay.  But we have plenty of paper office records from that time
> that are still quite readable!
>
> Best regards,
> Ivan Baggett
> Bagotronix Inc.
> website:  www.bagotronix.com
>
>
> ----- Original Message -----
> From: "Abd ul-Rahman Lomax" <[EMAIL PROTECTED]>
> To: "Protel EDA Forum" <[EMAIL PROTECTED]>
> Sent: Thursday, July 26, 2001 5:02 PM
> Subject: Re: [PEDA] a lib. for everyone
>
>
> > At 03:06 PM 7/26/01 -0400, chris mackensen wrote:
> > >because
> > >cadence's files are all OPEN and TEXT based and NOT ENCAPSULATED in a
> > >DATABASE (and NOT BINARY), it was a matter of my perl script just
parsing
> > >Excel sheets of pin data (automatically saved as text files over the
web)
> > >and generating the concept/cadence schematic part as the appropriate
TEXT
> > >files.
> >
> > It should be noted that the Protel ASCII format is not only text based,
> but
> > it is self-documenting. All the records and fields are named wherever
they
> > occur. The library format is binary only, but one could import parts to
a
> > PCB file and then create a library from the PCB file.
> >
> >
> > [EMAIL PROTECTED]
> > Abdulrahman Lomax
> > P.O. Box 690
> > El Verano, CA 95433
> >
>

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